[Equest-users] Global Parameter expression problem

[David Reddy]

If you specifying this expression in the input file you would use:

{(#PA("EXT-LTG-MAX") + #PA("EXT-LTG-MIN")) / 2}

If you specifying this expression in the eQUEST UI, you would use:

(#PA("EXT-LTG-MAX") + #PA("EXT-LTG-MIN")) / 2

Should work unless you are applying the expression to a keyword that 
does not support a numeric expression, like an enumerated list.

-David

On 10/27/2014 9:00 AM, Jones, Christopher wrote:
>
> I thought this would be fairly simple.  I have two global paramaters:
>
> PARAMETER
>
>   "EXT-MAX" = 0.9 ..
>
> PARAMETER
>
>   "EXT-MIN" = 0.05 ..
>
> Simple enough but then in a User expression, I want to take the 
> average of the two.
>
> The input dialog doesn't seem to provide a way to define this simply:
>
> #PA("EXT-LTG-MAX")  + #PA("EXT-LTG-MIN")  is allowed but I can't find 
> the right symbol to enclose that expression then divide by 2:
>
> {#PA("EXT-LTG-MAX")  + #PA("EXT-LTG-MIN")} / 2 -- gives an error
>
> (#PA("EXT-LTG-MAX")  + #PA("EXT-LTG-MIN")) / 2 -- gives an error
>
> #PA("EXT-LTG-MAX") / 2 + #PA("EXT-LTG-MIN") / 2 -- works but I don't 
> like it.
>
> **
>
> *Christopher Jones**,***P.Eng./
> /Tel: 416.644.4226 . Toll Free: 1.888.425.7255 x 527
>
> *From:*Equest-users 
> [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of 
> *Bishop, Bill
> *Sent:* Friday, October 24, 2014 12:05 PM
> *To:* Sol Rosenbaum; equest-users at lists.onebuilding.org
> *Subject:* Re: [Equest-users] Entering cooling/heating capacities
>
> Sol,
>
> I think the Cool Source shows as N/A because the only option for the 
> VAVS system type is chilled water. (You would have to pick PVAVS if 
> you wanted DX cooling.)
>
> Yes, most heating capacity inputs in eQUEST need to be entered as 
> negative values.
>
> For more specific questions, I suggest attaching your model .inp and 
> .pd2 files in future posts to equest-users.
>
> Regards,
>
> Bill
>
> *William Bishop, PE, BEMP, BEAP, CEM, LEED AP **|**Pathfinder 
> Engineers & Architects LLP*
>
> *Senior Energy Engineer*
>
> 	
>
> 134 South Fitzhugh StreetRochester, NY 14608
>
> */T: (585) 698-1956/*F: (585) 325-6005
>
> bbishop at pathfinder-ea.com 
> <mailto:wbishop at pathfinder-ea.com>www.pathfinder-ea.com 
> <http://www.pathfinder-ea.com/>
>
> http://png-5.findicons.com/files/icons/977/rrze/720/globe.pngCarbon 
> Fee and Dividend - simple, effective, and market-based.
>
> *From:* Equest-users 
> [mailto:equest-users-bounces at lists.onebuilding.org] *On Behalf Of *Sol 
> Rosenbaum
> *Sent:* Friday, October 24, 2014 10:17 AM
> *To:* equest-users at lists.onebuilding.org 
> <mailto:equest-users at lists.onebuilding.org>
> *Subject:* [Equest-users] Entering cooling/heating capacities
>
> Hi,
>
> We have Air Handler data from a building that I need to enter into the 
> model.  However, I am still new to this and have two questions:
>
> First, when I go to enter this information, we are not able to select 
> Chilled Water and for capacities I find that several cells says n/a 
> and do not allow me to enter in a value.  I am thinking that there 
> must be a higher level item that needs to be altered, but I do not 
> know what it is.
>
> For example, in this Sys1 (VAVS), we want to select Chilled Water from 
> the pull down, but it doesn't let us:
>
> In this screen, I am able to enter in a cooling capacity, but the 
> cooling capacity cell in the E1 Core Zn which is shown as a subsystem 
> of this one, has the n/a and does not allow entry.   Same thing for 
> heating.
>
> Second, when we enter in heating capacities, it seems that they have 
> to be entered in as a negative number.  Is that just the format of 
> eQuest so a heating coil with 500 MBH capacity gets entered as -500 MBH?
>
> Thanks,
>
> Sol
>
>
> ______________________________________________________________________
> NOTICE: This communication and any attachments ("this message") may 
> contain confidential information for the sole use of the intended 
> recipient(s). Any unauthorized use, disclosure, viewing, copying, 
> alteration, dissemination or distribution of, or reliance on this 
> message is strictly prohibited. If you have received this message in 
> error, or you are not an authorized recipient, please notify the 
> sender immediately by replying to this message, delete this message 
> and all copies from your e-mail system and destroy any printed copies.
>
>
> _______________________________________________
> Equest-users mailing list
> http://lists.onebuilding.org/listinfo.cgi/equest-users-onebuilding.org
> To unsubscribe from this mailing list send  a blank message to EQUEST-USERS-UNSUBSCRIBE at ONEBUILDING.ORG

-------------- next part --------------
An HTML attachment was scrubbed...
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20141027/c448b49b/attachment.htm>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 1517 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20141027/c448b49b/attachment.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 1647 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20141027/c448b49b/attachment-0001.jpeg>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/png
Size: 3859 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20141027/c448b49b/attachment.png>
-------------- next part --------------
A non-text attachment was scrubbed...
Name: not available
Type: image/jpeg
Size: 29188 bytes
Desc: not available
URL: <http://lists.onebuilding.org/pipermail/equest-users-onebuilding.org/attachments/20141027/c448b49b/attachment-0002.jpeg>